Envelop.



I A. G. KoLosA.

BNVELOP.

APPLICATION FILED NOV. 30, 1912. l 1,972,741. Patented sept.f9,191s.

2 SHEETS-SHEBT 1.

www W//MW A.'G. KOLOSA. BNVELOP.

APPLICATION FILED Nov. so. 1912. v

Patented Sept. 9, 1913.

attente/1g tra.

ALBERT G. Ko1.osa, ;or NEWBERRY, :aimineraria Specication of LettersPatelit Patented Sept. 9, 1913- Application led November 3U, 19412.Serial No. 734,368.

To all fwhom it may concern: e

13e 1t Vknown that I, ALBERT G. KoLosA, a citizen of the United States,'residing at Newberry, in the county ofi Luce and State improvements inenvelops .and more particularly to safety envelops. A

The object of the invention is to provide an envelop embodying improvedmeans for strengthening the construction of the envelop when sealed andalso means to guard against the fraudulent opening of the envelop byfurnishing proof of the fact in the event that an'attempt should be madeto open the envelop by an unauthorized person to obtain access to thecontents thereof.

Another object of the invention is to pro- ;Vide an envelop of thischaracter which will possess advantages in points of efficiency anddurability, is inexpensive of manufacture and at the same time is simplein construction and operation.

With the above and other objects in view, the invention consists in thenovel features of construction and the combination and arrangement ofparts to be hereinafter more fully described, pointed out in the claimsand shown in the accompanying drawings, in which-` FFigure 1 is a planview. illustrating the blank of which my improved envelop is formed.Fig. 2 is an'elevation of the envelop showing the same in al partlyfolded position. Fig. 3 is an elevation showing lthe same in its closedposition. y

In the construction of my improved envelop, it will be understood thatthe same must be made of paper or any other suitable material and may beof any suitable size desired.

In the drawings, 1 indicates the body of the envelop provided with theend flaps 2 and '3, the bottom Hap 4 and the top flap 5.

The flap 3 is cut inwardly upon its side edges to form angularlydisposed tabs 6 which, when the end of the flap is disposed within theslit 7 formed in the end flap 2 will engage the body of the Hap 2 at theends of the slit to prevent the removal of the end of the iap 3 withoutsevering the tabs 6 therefrom. The bottom flap 4 is of substantiallyrectangular shape and one corner thereof is turned inwardly as shown at8. f The other corner is cut away to form thetongue 9 which is providedupon its opposite edges with the tabs 10. which, when the tongue isthreaded within the slot 11 formed in the corner 8, will engage uponelther end of the slit so that the tongue cannot be removed therefromwithout severing the tabs. The top Hap 5 is substantially triangular 1nshape and is provided upon its side edges adjacent the apex thereof withoutwardly proJectlng tongues 12, said tongues extending outwardly fromthe flap at diametrically opposite points and are provided at theirouter ends with the angularly project-ing tabs 13 which, when thetongues are engaged within the slits 14 formed inthe flaps 2 and 3, willprevent the removal of the tongues without severing the tabs 13.Extending outwardly from the apex of the flap 5 is a tongue 15, theouter end of which is provided with. the angularly projecting tabs 16which, when the tongue is engaged wit-hinlthe slit 17, formedy in thcnap4, will prevent the removal of the tongue without severing the tabtherefrom and from this it will be seen that it is impossible to openthe envelop and gain access to the contents thereof, by an unauthorizedperson, wit-hout furnishing proof that the envelop has been tamperedwith. This adds greatly to connection between the various flaps of theenvelop.

While I have shown and described the preferred form of my invention, itwill be obvious that various changes in the details of construction andin the proportions may be resortedto for successfully carrying myinvention into practice without sacrificing any of the novel features ordeparting from the scope of the appended claims.

What I claim is y 1. In a device of the character described, thecombination of a body provided with end flaps, means carried by the endsof said flaps for engagement to prevent the opening of said aps withoutdetection, a bottom flap of substantially rectangular form having one ofits free corners bent inwardly and provided with a slit, the other freecorner being cut away to form a tongue having angular tabs formedV onthe opposite sides thereof and adapted to engage the ends of the slit toprevent the removal of the tongue when inserted therein, a top fla-p andmeans carried by the top flap for'engagement withn the other flaps toprevent fraudulent access.

to the interior of the envelop.

2. In a device of the character' described, the combination of a bodyprovided with end flaps, one of said end flaps having a transverse slit,the other of said end flaps -removal of thetongue when inserted therein,a toptlap of substantially triangular forni, oppositely disposed tongues'formed upon the side edges thereof and arranged adjacent the apex,angularly disposed tabs formed upon the out-er ends thereof, a thirdtongue projecting outwardly from the apex of the top flap, angularlydisposed tabs formed at the outer end of the( third tongue and said endflaps and the bottom flap being provided with slits to receive thetongues upon the top ap, the tabs upon said ktongues preventing theremoval of the tongues Without severing the same from the body. Y

In testimony whereof I hereunto aix my signature in the presence of'twoWitnesses.

ALBERT G. KOLOSA.

IVitnesses:

CLARENCE I. MARTIN. FRANK B. REYNOLDS.

